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Diamond Pistons Domestic Series Pistons
SB Chevy FT 4.165B/1.425CD NS
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Estimated Ship Date: Apr 13, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
11184
Part Type:
Product Line:
Summit Racing Part Number:
DPP-11184
UPC:
193564369925
Piston Rings Included:
Yes
Bore (in.):
4.165 in.
Bore (mm):
105.791mm
Stroke:
3.750 in.
Engine Stroke Type:
Stock/Stroked
Actual Engine Displacement:
6.7L/408
Rod Length:
5.700 in.
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.425 in.
Piston Head Volume (cc):
+4.00cc
Wrist Pin Style:
Floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
1/16 in. x 1/16 in. x 3/16 in.
File Fit:
Yes
Gapless:
No
Top Ring Thickness:
1/16 in.
Top Ring Material:
Ductile iron
Top Ring Facing Material:
Plasma-moly
Second Ring Thickness:
1/16 in.
Second Ring Material:
Ductile iron
Second Ring Facing Material:
Ductile iron
Oil Ring Thickness:
3/16 in.
Oil Ring Material:
Stainless steel
Oil Ring Tension:
Standard
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Pistons are 4032 material.
Diamond Pistons Domestic Series Pistons
Diamond Pistons Domestic Series pistons are designed and tested for the high-stresses seen with high-compression, forced induction, or nitrous-fed domestic engines. Engineered with longevity, reliability, and strength, these forged aluminum pistons are specifically designed for your engine to deliver the results you demand.
Diamond Piston Domestic Series pistons feature:
* 3D milling on piston crowns for "ready-to-install" finish
* Generous valve pockets designed to work with stock or oversized valves and various cylinder heads
* Constructed from forged 4032 or 2618 aluminum alloy (where specified)
* Premium 8620 or H-13 steel wrist pins (where specified)
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